Android Pie update now rolling out for the Xiaomi Mi Box 3
The Android Pie update is the most awaiting firmware for MI Box 3. Mi Box 3 has a lifespan of about four years. It looks like the Android TV Box left by Xiaomi. But users have started getting what they were waiting for.
The brand eventually began releasing Android Pie. Even though it was in beta format. Remember, three years have passed since Android Oreo (8.1) was launched for this box.
As reported by users on Reddit. This is not a static update. As shown in the figure below. This is a trial version (beta), which replaces 620.1MB. Users said that the stable version will be released to the public soon. However, this can be expected. That it may still take several months to reach your device.
If your goal is streaming. So this is an Android TV box. Which is still capable today. I used it for a while before switching to the Mi Box S.
How to update mi box 3 to android Pie 9

If you want to buy one today. So Mi Box S may be the best and cheapest Android TV Box. If you still own Mi Box 3. So you will be happy to know that you have not forgotten this brand. In the update of Android 9 Pie has not changed much in appearance. The UI is almost identical to Oreo. But it includes some major upgrades such as official video support.
According to this Reddit post, the first # AndroidTV9 (Pie) beta of @ XiaomiMi Box S has been released.
Finally, it brings official support for the Amazon @ Prime Video app. Which is already installed. https://t.co/3y23a4IntT
-Android TV rumor (@androidtv_rumor) November 4, 2019
If you have Mi Box S, you can express your interest in beta here. If you are willing to do something yourself. So there are instructions for manually downloading and installing the beta on Reddit. You have to easily download Android 9 (Pie) firmware for mi box 3. But please note: Initial reports indicate. That this version breaks Chromecast functionality.